Just bought a refurbed unit from ebay and thought I'd pass on comments:
The Dell box it that came in has a sticker on the side which lists the s/n and says made in china, rev A00.
The pull out card on the monitor lists the same s/n, but says made in Czech Dec 2010, rev A05.
Seems odd, I guess when they get refurbed they put in a new card on the monitor ...
Comes with no dead pixel guarantee and 3yr dell warranty.
Its unmarked and as new, there's no dead pixels, probably a slight green uniform tint to the screen. I use a colorvision spyder2 to calibrate and that has knocked the green tint off and the picture is fine. games play fine. So overall seems pretty good.